20732472958032 has 400 divisors, whose sum is σ = 66648448101312. Its totient is φ = 6169184778240.

The previous prime is 20732472958019. The next prime is 20732472958039. The reversal of 20732472958032 is 23085927423702.

20732472958032 is a `hidden beast` number, since 2 + 0 + 7 + 3 + 2 + 4 + 7 + 29 + 580 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 20732472958032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20732472958039) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 302748948 + ... + 302817420.

Almost surely, 2^{20732472958032} is an apocalyptic number.

20732472958032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20732472958032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33324224050656).

20732472958032 is an abundant number, since it is smaller than the sum of its proper divisors (45915975143280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20732472958032 is a wasteful number, since it uses less digits than its factorization.

20732472958032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68888 (or 68873 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 20732472958032 in words is "twenty trillion, seven hundred thirty-two billion, four hundred seventy-two million, nine hundred fifty-eight thousand, thirty-two".